The purpose of the NeXus data format is to facilitate the exchange of Neutron, X-Ray and muon data. Interest has recently been very much focussed on agreeing common instrument definitions. Clearly these are key to the successful exchange of data. Also of great importance however and recently somewhat neglected is the ability to exchange the NeXus (and other data) files themselves by anything other than ad-hoc means (ftp, web download). At ISIS we have been testing a very fluid means of data distribution using the San Diego Supercomputing Centre's Storage Resource Broker (SRB) software. We believe it is now possible to create a global fully distributed storage network for Data files which can be accessed in a uniform manner from wherever the scientist is located and on whatever platform. As the technology is surprisingly simple to implement and can be added incrementally to existing facilities, this paper proposes that we adopt SRB to establish a data exchange network which links our facilities and which supports in particular the needs of neutron, X-Ray and muon science. To give it an identity associated with NeXus aims, we suggest the name NeXus-Net or NXnet for short.
Abstract File: abstract00106.txt
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